Writer Steven Moffat spoke with The Guardian about the anticipated returns of two hit BBC shows: Doctor Who and Sherlock.

The writer, who took over as show runner for the fifth season of Doctor Who from Russell T. Davies, was tight-lipped about details of the sixth season, which sees the return of Matt Smith as the eleventh Doctor. Instead, he mainly spoke about the pressure and expectations on him to do well with the series.

While he didn’t spill any information about the upcoming sixth season of Doctor Who, he did give some clues as to what to expect for Season 2 of Sherlock.

Sherlock, which was co-written and co-created by Moffat and Mark Gatiss, is a modern take on the classic Sir Arthur Conan Doyle detective Sherlock Holmes and stars Benedict Cumberbatch as Holmes and Martin Freeman as Dr. John Watson. The first season consisted of three 90-minute episodes.

You can deduce quite a bit from Moffat’s three-word clue. Here’s my deduction: “Adler” means we’ll meet Irene Adler, the only woman to ever outsmart Sherlock Holmes and to attract his interest. The character appeared in only one Holmes story, “A Scandal in Bohemia,” so either we’ll get an episode based on that story or, like the Guy Ritchie/Robert Downey Jr film Sherlock Holmes, Adler will be inserted into an all-new adventure. “Hound” is a reference to the popular story The Hound Of The Baskervilles, while “Reichenbach” is Reichenbach Falls, where in The Final Problem, Holmes famously faces off with his archnemesis Professor Moriarty.

It looks like there’s lots of adventure to be had in the second season of Sherlock, which will also be a series of three 90-minute episodes and is scheduled to air in the UK in Fall 2011 (which means those of us in the United States will be waiting for this a long time).

Season 1 of Sherlock is out in the U.S. on DVD and Blu-ray, so you have plenty of time to catch up before the second season arrives.